Calculate the pH of a 1.00 L buffer solution containing 0.155 mol of acetic acid (HC₂H₃O₂) and 0.186 mol of sodium acetate (NaC₂H₃O₂). The Ka of acetic acid is 1.8×10−⁵.
pH=
Calculate the pH of the buffer solution after 0.0443 mol of HCl is added to the buffer. Assume the volume of the solution does not change.
